always use a spotter. start slowly, and build up to heavier weights. >> individuals that want to weight train, whether they're using free weights or machines, need to make sure that they work with a coach, a physical trainer, or personal trainer, an athletic trainer to learn the proper techniques. >> inhale, exhale. excellent. >> with the help of proper supervision, you can be sure you're going after the result you want safely. >>> now let's check out something cool to do online. click this. >> a lot of us may never circle the globe, visit the jungle or climb the alps, but this site can get you pretty close. kids national geographic is a great place for animal lovers and young explorers to learn about our planet. you can check out amazing photos and videos of almost any animal you can think of and even some you may have never heard of. click on the "people and places" link to learn about different cultures from around the world. there are also links to tons of games, activities and stories. you can travel